Refresh rate: The number of times per second in which the monitor draws the data it is being given. Since activated LCD pixels do not flash on/off between frames, LCD monitors exhibit no refresh-induced flicker, no matter how low the refresh rate.[4] Many high-end LCD televisions now have a 120 or 240 Hz (current and former NTSC countries) or 100 or 200 Hz (PAL/SECAM countries) refresh rate. The rate of 120 was chosen as the least common multiple of 24 frame/s (cinema) and 30 frame/s (NTSC TV), and allows for less distortion when movies are viewed due to the elimination of telecine (3:2 pulldown). For PAL at 25 frame/s, 100 or 200 Hz is used as a fractional compromise of the least common multiple of 600 (24 x 25). Until a 600 Hz refresh rate becomes available, PAL video will speed up cinema by a small percentage (currently 1 to 4 percent). These higher refresh rates are most effective from a 24p-source video output (e.g. Blu-ray Disc), and/or scenes of fast motion.

XDR寫到:
LCD是因為影像會殘留，frame之間沒有空白
所以掃描頻率低也不會閃爍，畫面看起來也是連續的
只差在這啦，基本上概念還是一樣

話說我一開始也是覺得掃描頻率換算FPS應該是有套規則
可是剛看了不少資料，得到結果都是垂直掃描率=FPS
當然水平掃描轉成FPS是要換算啦，不過單位是用KHz...

XDR寫到:



具體有換算方法嗎？你的連結中也有一行
「在NTSC中，顏色的呈現還需要一個步驟：更新頻率必須從60 Hz稍微減少到59.97 Hz (也就是每秒29.97張圖)以調和顏色 」

我也覺得這是對的呀，我一直以來的觀念也是這樣
可是SONY跟松下的產品網頁，通通都是寫XXX「張」...
若照比率算 60Hz約每秒30張，那240Hz也不過是每秒120張，SONY卻是寫240張...
這...我倒了，誰來解惑- -

XDR寫到:
喔，感覺好像作弊啊 哈哈
只是利用影像殘留當作一個完整的frame，一半是灌水嘛
不過NTSC實際資料流量還是29.97，總的還是60Hz就夠吧
話說這主題又偏掉了XD

轉DVD那是去交錯吧，應該是針對480i，實際偵數好像還是29.97 不會變60

[XDR 在  2009-8-4 11:07 AM 作了最後編輯]

AGC寫到:
你們少了加上掃瞄線返回時間了,所以60FPS不一定正好是60FPS(有幾頁應該用在返回時間)

XDR寫到:
我、我...我高中沒上物理（逃～）
這串結論是「一切都是商業手法，都是幻覺啊！」

話說到底有沒有人能給樓主答案呢...幫忙提一下好了
我最近開始有點自覺我跑進去的文章都會偏題...這還真是...糟糕啊